Solved
Cannot open the game due to "Invalid game executable" in the program files.
Am I stupid? I tried validating the files and backing up the game, when that didn't work, I reinstalled it and the same problem happened. Anyone have any fixes?
Check if Verifying your Steam Files has an effect on this:
https://help.steampowered.com/en/faqs/view/0C48-FCBD-DA71-93EB
Thanks.
